A pediatrician wants to conduct a survey to determine if the number of children per family...
A pediatrician wants to conduct a survey to determine if the number of children per family is statistically the same in the United States, Canada, and England.
To collect data for this ANOVA test, she randomly selects families in each country and records the number of children in each. Assume the conditions necessary for a one-way ANOVA are met.
If the F test statistic for this data set is 0.067, which of the following conclusions is accurate
Reject the null hypothesis. There is enough evidence to show a statistically significant difference in the number of children per family between the three countries.
Fail to reject the null hypothesis. There is not enough evidence to show a statistically significant difference in the number of children per family between the three countries.
There is not enough information to know if there is a statistically significant difference in the number of children per family between the three countries.
Reject the null hypothesis. There is not enough evidence to show a statistically significant difference in the number of children per family between the three countries.
Homework Answers
Since test statistic is not significant: correct option is:
Fail to reject the null hypothesis. there is not enough evidence to show a statistically significant difference in the number of children per family between the three countries.
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A pediatrician wants to conduct a survey to determine if the
number of children per family...
For either independent-measures or repeated-measures designs comparing two treatments, the mean difference can be evaluated with...
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The 2002 General Social Survey asked, "What do you think is the ideal number of children...
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13. After the institution of the One-Child Policy, the average number of children per household in...
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Question (9) The manager of an assembly process wants to determine whether or not the number...
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Question 24 A pediatrician wants to determine the relation that may exist between a child's height...
Question 24
A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 5 children and measures their height and head circumference. The data are summarized below. A normal probability plot suggests that the residuals are normally distributed. Complete parts (a) and (b) below. Height (inches), x 27.75 27.5 26.75 25 25.55 Head Circumference (Inches), y 17.6 17.5 17.3 16.9 17.1 (a) Use technology to determine sp.. (Round to four decimal...
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A meteorologist has been studying the effects of Rivers and Mountains on local weather patters. She...
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A researcher wants to determine if the number of years of education that a person's father...
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In a previous poll, 36% of adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Suppose that, in a more recent poll, 378 of 1108 adults with children under the age of 18 reported that their family ate dinner together seven nights a week. Is there sufficient evidence that the proportion of families with children under the age of 18 who eat dinner together seven nights a week has decreased?...
Question 24
A pediatrician wants to determine the relation that may exist between a child's height and head circumference. She randomly selects 5 children and measures their height and head circumference. The data are summarized below. A normal probability plot suggests that the residuals are normally distributed. Complete parts (a) and (b) below. Height (inches), x 27.75 27.5 26.75 25 25.55 Head Circumference (Inches), y 17.6 17.5 17.3 16.9 17.1 (a) Use technology to determine sp.. (Round to four decimal...
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A meteorologist has been studying the effects of Rivers and Mountains on local weather patters. She measured the amount of precipitation for the months of August - January in the Idaho cities of Bonners Ferry and Moyle Springs (approximately 10 miles east of Bonners Ferry) and Libby. Montana which is approximately 40 miles East of Bonners Ferry. Is there evidence to suggest a difference in precipitation between these three cities? Bonners Ferry 0.94 1.31 Libby 0.91 Moyie Springs 1.07 1.16...
A researcher wants to determine if the number of years of education that a person's father has ("paeduc") is related to the number of years of education that the person has ("educ"). He uses simple linear regression to examine this question. The output from Excel is shown below. Regression Statistics Multiple R 0.527393938 R Square 0.278144366 Adjusted R Square 0.264776669 Standard Error 2.436826202 Observations 56 ANOVA df F Significance F 2.96139E-05 20.8072 Regression Residual Total SS MS 123.555701 123.5557 320.6585847...
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